Yes, you can switch phones. As far as selling the one on the payment plan ... it would be wiser to pay it off first, then sell it to recoup the money. The new owner may not be able to activate it on another account, if payments are still owed on it.
At the very least, you should inform the person purchasing the phone from you that you are still making payments on it. That way, they would be aware of the possibility the phone they are purchasing from you could be made inoperable at some point in the future by Verizon if you choose to stop making payments for whatever reason.
Activating a new phone you just purchased is a must, JUANSHOOBY. We would be delighted to help you get this completed. So I can better assist, please respond to the private message I have sent you.
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